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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1966 | 5 |
| 1971 | 4 |
| 1972 | 4 |
| 1973 | 2 |
| 1975 | 21 |
| 1976 | 10 |
| 1977 | 2 |
| 1978 | 10 |
| 1979 | 3 |
| 1980 | 23 |
| 1981 | 12 |
| 1982 | 16 |
| 1983 | 10 |
| 1984 | 10 |
| 1985 | 7 |
| 1986 | 14 |
| 1987 | 6 |
| 1988 | 5 |
| 1989 | 31 |
| 1990 | 24 |
| 1991 | 38 |
| 1992 | 66 |
| 1993 | 71 |
| 1994 | 88 |
| 1995 | 68 |
| 1996 | 86 |
| 1997 | 107 |
| 1998 | 126 |
| 1999 | 171 |
| 2000 | 185 |
| 2001 | 240 |
| 2002 | 313 |
| 2003 | 420 |
| 2004 | 783 |
| 2005 | 1554 |
| 2006 | 4548 |
| 2007 | 5700 |
| 2008 | 7362 |
| 2009 | 8448 |
| 2010 | 9457 |
| 2011 | 10393 |
| 2012 | 11151 |
| 2013 | 12415 |
| 2014 | 12793 |
| 2015 | 13538 |
| 2016 | 13000 |
| 2017 | 13118 |
| 2018 | 14485 |
| 2019 | 14953 |
| 2020 | 16663 |
| 2021 | 18224 |
| 2022 | 16214 |
| 2023 | 11871 |
| 2024 | 3418 |